Files
tasks/temporal/cluster_metadata_loader.go
Alex ShtinandGitHub 8e8f1b0f7c Remove license header from every file (#7689)
## What changed?
<!-- Describe what has changed in this PR -->
Remove license header from every file. Because it is really hard to
follow in this PR here is the summary:
1. License header is removed from all `.go` and `.proto` files
:fireworks::fireworks:🎆.
2. `LICENSE` file in the root directory has only Temporal and Uber
copyrights.
3. 5 other `LICENSE` files added to the packages which have copyrights
different from Temporal and Uber: Datadog, Xargin, "Mat Ryer, Tyler
Bunnell and contributors".
4. `license_file` flag is removed from all code generation tools.
5. `copyright_file` flag is removed from `go:generate mockgen`
directive.
6. All copyright related targets are removed from `Makefile`.
7. Updated Temporal copyright year to 2025 everywhere.

## Why?
<!-- Tell your future self why have you made these changes -->
I double checked with legal department that it is not needed to have
license header in every file. One file per repo is enough. I put all
copyrights to the root `LICENSE` file and removed header from all other
files. Also updated tools and `Makefile`.
2025-05-01 18:50:21 -07:00

78 lines
2.9 KiB
Go

package temporal
import (
"context"
"fmt"
"go.temporal.io/server/common/cluster"
"go.temporal.io/server/common/config"
"go.temporal.io/server/common/log"
"go.temporal.io/server/common/log/tag"
"go.temporal.io/server/common/persistence"
)
// ClusterMetadataLoader loads cluster metadata from the database and merges it with the static config.
// TODO: move this to the [cluster] package. It is here temporarily to avoid a circular dependency.
type ClusterMetadataLoader struct {
manager persistence.ClusterMetadataManager
logger log.Logger
}
// NewClusterMetadataLoader creates a new [ClusterMetadataLoader] that loads cluster metadata from the database.
func NewClusterMetadataLoader(manager persistence.ClusterMetadataManager, logger log.Logger) *ClusterMetadataLoader {
return &ClusterMetadataLoader{
manager: manager,
logger: logger,
}
}
// LoadAndMergeWithStaticConfig loads cluster metadata from the database and merges it with the static config.
func (c *ClusterMetadataLoader) LoadAndMergeWithStaticConfig(ctx context.Context, svc *config.Config) error {
iter := cluster.GetAllClustersIter(ctx, c.manager)
for iter.HasNext() {
item, err := iter.Next()
if err != nil {
return err
}
newMetadata := cluster.ClusterInformationFromDB(item)
c.mergeMetadataFromDBWithStaticConfig(svc, item.ClusterName, newMetadata)
}
return nil
}
func (c *ClusterMetadataLoader) mergeMetadataFromDBWithStaticConfig(svc *config.Config, clusterName string, newMetadata *cluster.ClusterInformation) {
c.backfillShardCount(svc, newMetadata)
if currentMetadata, ok := svc.ClusterMetadata.ClusterInformation[clusterName]; ok {
c.reconcileMetadata(svc, clusterName, currentMetadata, newMetadata)
}
svc.ClusterMetadata.ClusterInformation[clusterName] = *newMetadata
}
// reconcileMetadata merges the current metadata with the new metadata, modifying the new metadata in place.
func (c *ClusterMetadataLoader) reconcileMetadata(
svc *config.Config,
clusterName string,
currentMetadata cluster.ClusterInformation,
newMetadata *cluster.ClusterInformation,
) {
if clusterName != svc.ClusterMetadata.CurrentClusterName {
c.logger.Warn(
"ClusterInformation in static config is deprecated. Please use TCTL tool to configure remote cluster connections",
tag.Key("clusterInformation"),
tag.IgnoredValue(currentMetadata),
tag.Value(newMetadata))
return
}
newMetadata.RPCAddress = currentMetadata.RPCAddress
c.logger.Info(fmt.Sprintf("Use rpc address %v for cluster %v.", newMetadata.RPCAddress, clusterName))
}
// backfillShardCount is to add backward compatibility to the svc based cluster connection. It sets the shard count for
// newMetadata to the number of shards in the current cluster, if the shard count is not set in the database.
func (c *ClusterMetadataLoader) backfillShardCount(svc *config.Config, newMetadata *cluster.ClusterInformation) {
if newMetadata.ShardCount == 0 {
newMetadata.ShardCount = svc.Persistence.NumHistoryShards
}
}